Paper cap for bottles



March 24, 1936. A. BODOR PAPER CAP FOR BOTTLES Original Filed June 18-, 1931 Patented Mar. 24, 1936 acsam ran roe nor'raas Andrew Bodor, Nek, N. 3.,

ginorto Ly B. Koch, New York, N. Y.

pplication June 18, 1931, Serial N R newed .rr c- 1 Claim. (Cl. 215-38) My invention relates to improvements in paper caps for bottles and the object of the invention is to devise a form of cap which will allow of a perfeet yet variable fit over the mouth of the bottle, and which should the milk freeze will expand sufliciently so as to maintain, under all circumstances, a secure and non-leakable closure.

A further object is to provide a definite means, whereby the paper at the periphery of the cap maybe utilized as a seal and locking device thereby dispensing with the use of a circlet of wire now frequently used around the edge of the cap.

To eiiect these and other objects my cap is formed with an outer face having a plurality of annular .corrugations designed to flt within the flange of the mouth of the bottle and an outer rim terminating in a circumferential bead designed to grip the exterior of the flange, the cap being otherwise formed as hereinafter more particularly explained.

Fig. 1 is a cross-section of the cap and the upper end of the neck or mouth of the bottle.

Fig. 2 is perspective view of the cap.

Fig. 3 is a corresponding section to Fig. 1 showing the expansion of the cap vertically which would or may occur due to the freezing of the milk.

In the drawing like characters of reference indicate corresponding parts.

I is the upper portion or neck of the bottle formed with the usual mouth having an upwardly extending annular flange 2, and an inwardly extending annular flange 3 as indicated. d is the cap which is preferably formed of paper and is provided with a central boss 5 and annular corrugations 6 surrounding the same.

The outermost corrugation fltsover the flange 2 of the neck of the bottle and extends downwardly so as to grip the exterior of said flange, terminating in a curl forming a circlet or head 7.

The boss 5 and the annular corrugations 6 permit of an upward expansion and the bead circlet 7 permits of a lateral expansion of the periphery or rim of the cap.

It will thus be understood that the expansion of the cap may be upwardly as well as laterally and circumferentially and the bead 7 may fit into a slight depression 8, both the corrugations and the bead being llmitedly resilient. The outer cor- 5 rugation consequently will grip the flange 2 on both sides and thereby secure the cap in position, while the inner corrugations may expand vertically should the milk. freeze or expand, thereby preventing the breaking of the bottle or the leak 10 ing of the milk through the mouth thereof.

From this description it will be seen that the advantages of my cap are such that the corrugations on the top or face of the cap provide for a perfect and variable flt and should the milk freeze and rise to the top so as to press outwardly or upwardly the corrugations will permit of the cap yielding without breaking the seal and obviate any danger of leakage. The bead circlet will act as a seal and locking device on account of being sufilciently resilient so as to be held in place on its seat on the flange of the neck. It will thus be seen that the use of a wire circlet now frequently used is entirely dispensed with in types of caps where the periphery overhangs the outer flange of the neck.

Although I- have described in detail the construction of my cap it will be understood that the form may be varied to suit dliierent types of bottle necks without departing from the spirit of my invention and yet well within the scope of the claims.

What I claim as my invention is:

A cap for bottles and the like comprising a circular disk, having an annular rim provided with outer and inner flanges incapable of expansion laterally yet sufiiclently resilient to tenaciously grip the flange surrounding the neck at the mouth and having annular corrugations in continuous reverse convolutions from centre to rim capable 40 of expanding vertically only.

ANDREW BODOR. 

